New User problem

I just downloaded Dorico SE. all 4 files downloaded and appear to have installed OK. After taking the tours I tried playing a sample score and no sound came out for the instruments. If I turn on the metronome I can hear it, just no instruments. Can anyone advise what I can do please.

Please load a demo project and then choose from the main menu ‘Help > Create Diagnostics Report’. The corresponding zip file post here. Thanks

Ulf - I’ve gone right back to the Installer Assistant. It’s so long since I’ve had to install software (rather than just download an app) I failed to hit ‘open’ for all 4 of the files that the installer downloaded. I have now fixed the problem but thank you for responding.